Improvement in steam-engine lubricators



J. AUGUSTUS LYNCH, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO HUNTooN, AND o. s. LYNCH, -oE SAME PLAGE.

Letters Patent No. 90,371, dated Ma/y 25, 1869.

The Schedule referred to these Letters Patent and making part of the same.

To all persons to it'hom these presents may come:

Be it known that I, J. AUGUsTUs LYNCH, of Boston, ofthe county of Suiolk, and State of Massachusetts, have invented a new and useful Improvement in Lubrieators for Steam-Engine Cylinders; and do hereby declare the same to be fully described in the following specification and represented in the accompanying drawings, of which- Figure l'isa side elevation, and

Figure 2, a vertical section of it.

In carrying out my invention, I combine with a globe-valve, a tallow, or lubricating-vessel, and a means of discharging therefrom by and with steam, and into thel cylinder or steam-chest of a steam-engine, oil or tallowfor the purpose of lubricating the internal surfaces and the pistou of such chest and cylinder. f

A denotes a globe-valve, which consists of a globular case, a, a valve, b, and mechanism for elevating and depressing the latter relatively to its seat c, there being an induction-opening, d, and an education-pas-1 sage, e, to such oase, the whole being as represented, and as ordinarily constructed. 1 -f I Extending both within and, above the valve-case w, is a vessel, B, or oil or tallow-reservoir, it being provided with a cap or cover, f, and also with a mouth, g, the latter being to enable the vessel toI be supplied with the lubricating-material as occasionmay require.

The valve-stem h has a screw, i, made` on it to screw through the bottom of the oil-vessel.

The said bottom is also formed, at its lower part, with a conical valve-seat, k, to receive an auxiliary valve, l, which is applied to the stem h, and above the main valve.

At its upper part, the 'said stem of the valve is plismatic, and enters a rotary key, applied to the cap of the oil-vessel.

By revolving the said key in either direction, the valve and its stem will be revolved. Therefore, by means of the key, the'valve may be raised ol itsseat or forced down upon the same, as circumstances may require.

The auxiliary valve may also be brought up against its seat, so as to 'stop the flow of steam through the seat, and the sprayduct applied thereto.'

This spray-duet consists of a'pipe, lC, leading laterally out of the auxiliary valveseat, and provided with one or more lateral passages m, extending up ii'om its bore into the oil-chan1ber or vessel.

This pipe is to lead into that part of the supplypipe of the steam-chest of the cylinder which extends operative4 mechanism,and with the from such steam-chest to the valve-seat of the governor, and there may be a stop-cock, x, in the sprayduct. v

From the above, it will be seen that when the'jnain valve b, of the case a, is raised ol its seat, soas to cause the auxiliary valve l to be brought close up to its seat k, the passage of steam into and through the spray-duct C, will be cut olf; also that when the valve lis ,oi its seat, the steam, `when in the globevalve oase, will have free access to such spray-duct, and will rush through it and draw oil from the oil-reservoir, break up such oil into spray, and discharge it into the steam-chest, om whence it -will dow, or be carried into the cylinder, whereby it will be caused to lubricate the valve and the piston of the cylinder.

' In that part of the steam-pipe which is between f the governor and the steam-chest, the pressure ofthe steam is much less than it is within the globe or stopvalve case, the same being due to the fact of the steam being more or less throttled by the governor-valve.

Consequently the excess- @f pressure wilLcause the steam from the-globe o1stop'valve case to rush with greatv velocityin'to and through the sprayfduct, when the auxiliary valvel'is off its seat.

By having the greaselvessel arranged with the globe;v valve, in manner as set forth, the steam, Ywhen inorl passing through the case`of the latter, will heat the greasevessel,and consequently melt the tallow or grease which may be put therein.

By such arrangement of the grease-receiver, the grease will be melted or tried out by contact with the hot'metal.

The auxiliary valve'and its seat also operate topack i the valve-stem when the stop-valve or raised to its greatest altitude.

What I claim as my invention may be stated as follows; that is to say- Iclaim the combination as well as the arrangement of the grease-vessel B with the stop-valve b, its case. a, and stem b, substantially as described, such being so that steam, when in the said case, may come into. contact with and heat the said grease-vessel.

Also, the combination of the grease-vessel B, the spray-duct C, one or more passages fm, and the auxiliary valve-seat k, with 4the stop-valve'y b, its case a, and auxiliary valve' l, applied to the stem of the said stop-valves, as explained, the whole beingsubstantially as hereinbefore described.

J. AUGUSTUS LYNCH.

Witnesses:

- SAMUEL N. PIPER.

is entirely open,

R. H. EDDY, 

